Reflection: Adjustments to Practice Triangle Inequality Theorem - Section 3: Summary + Homework


I had several tables ask if they could have their straw bags back in order to figure out the answer to my question - so I thought that was awesome.  I considered just drawing them a triangle on the board, but I was excited that they wanted to figure it out for themselves.  Once they had their straws, students were able to answer the question with ease.  I think in the future I may add a column to the table about the angles, so that they make note of it during the discovery.

  Summary Reflection
  Adjustments to Practice: Summary Reflection
Loading resource...

Triangle Inequality Theorem

Unit 7: Geometric Figures
Lesson 9 of 14

Objective: Students will be able to determine if three side lengths can form a triangle.

Big Idea: Any three sides lengths can't form a triangle? NOPE! Students will use straws of various lengths to investigate this theorem.

  Print Lesson
36 teachers like this lesson
discovery pic
Similar Lessons
Drawing Prisms & Pyramids
7th Grade Math » Geometry
Big Idea: It is empowering and fun to learn how to draw prisms and pyramids.
New Orleans, LA
Environment: Urban
Grant Harris
Constructing an Equilateral Triangle
12th Grade Math » Trigonometry: Triangles
Big Idea: Throughout the semester, we will explore relationships between triangles and circles. Here, we start by using circles to make an equilateral triangle.
Worcester, MA
Environment: Urban
James Dunseith
Angle Vocabulary Introduction
7th Grade Math » Angles
Big Idea: Students brainstorm vocabulary terms about angles and write definitions of those terms.
Columbus, OH
Environment: Urban
Jada Jackson
Something went wrong. See details for more info
Nothing to upload